* [xiang:xfs/end_cow 2/3] fs/xfs/libxfs/xfs_bmap.c:2459:13: warning: variable 'tmp_logflags' is used uninitialized whenever 'if' condition is false
@ 2022-02-14 4:29 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2022-02-14 4:29 UTC (permalink / raw)
To: Gao Xiang; +Cc: llvm, kbuild-all, Xiang Gao, linux-kernel
tree: https://git.kernel.org/pub/scm/linux/kernel/git/xiang/linux.git xfs/end_cow
head: 20a175b5d3ff8ecb5be2451ce9dcdf82c4aa2afd
commit: 9d499a4f68f24f9dc7880e6f310c7488fe026610 [2/3] xfs: introduce xfs_bmap_update_extent_real()
config: arm-buildonly-randconfig-r001-20220214 (https://download.01.org/0day-ci/archive/20220214/202202141243.BLvjvLOP-lkp@intel.com/config)
compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project ea071884b0cc7210b3cc5fe858f0e892a779a23b)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install arm cross compiling tool for clang build
# apt-get install binutils-arm-linux-gnueabi
# https://git.kernel.org/pub/scm/linux/kernel/git/xiang/linux.git/commit/?id=9d499a4f68f24f9dc7880e6f310c7488fe026610
git remote add xiang https://git.kernel.org/pub/scm/linux/kernel/git/xiang/linux.git
git fetch --no-tags xiang xfs/end_cow
git checkout 9d499a4f68f24f9dc7880e6f310c7488fe026610
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash fs/xfs/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> fs/xfs/libxfs/xfs_bmap.c:2459:13: warning: variable 'tmp_logflags' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
} else if (!convert) {
^~~~~~~~
fs/xfs/libxfs/xfs_bmap.c:2464:16: note: uninitialized use occurs here
*logflagsp |= tmp_logflags;
^~~~~~~~~~~~
fs/xfs/libxfs/xfs_bmap.c:2459:9: note: remove the 'if' if its condition is always true
} else if (!convert) {
^~~~~~~~~~~~~~
fs/xfs/libxfs/xfs_bmap.c:1960:20: note: initialize the variable 'tmp_logflags' to silence this warning
int tmp_logflags; /* partial log flag return val */
^
= 0
1 warning generated.
vim +2459 fs/xfs/libxfs/xfs_bmap.c
1931
1932 /*
1933 * Update a real allocated extent (including converting an unwritten
1934 * allocation to a real allocation or vice versa.)
1935 */
1936 int /* error */
1937 xfs_bmap_update_extent_real(
1938 struct xfs_trans *tp,
1939 struct xfs_inode *ip, /* incore inode pointer */
1940 int whichfork,
1941 struct xfs_iext_cursor *icur,
1942 struct xfs_btree_cur **curp, /* if *curp is null, not a btree */
1943 struct xfs_bmbt_irec *new, /* new data to add to file extents */
1944 int *logflagsp, /* inode logging flags */
1945 bool convert)
1946 {
1947 struct xfs_btree_cur *cur; /* btree cursor */
1948 int error; /* error return value */
1949 int i; /* temp state */
1950 struct xfs_ifork *ifp; /* inode fork pointer */
1951 xfs_fileoff_t del_startoff; /* start offset of del entry */
1952 xfs_exntst_t del_state;
1953 xfs_fileoff_t new_endoff; /* end offset of new entry */
1954 struct xfs_bmbt_irec left, right; /* neighbor extent entries */
1955 struct xfs_bmbt_irec prev; /* previous old extent */
1956 int rval=0; /* return value (logging flags) */
1957 int state = xfs_bmap_fork_to_state(whichfork);
1958 struct xfs_mount *mp = ip->i_mount;
1959 struct xfs_bmbt_irec old;
1960 int tmp_logflags; /* partial log flag return val */
1961
1962 *logflagsp = 0;
1963
1964 cur = *curp;
1965 ifp = XFS_IFORK_PTR(ip, whichfork);
1966
1967 ASSERT(!isnullstartblock(new->br_startblock));
1968
1969 XFS_STATS_INC(mp, xs_add_exlist);
1970
1971 /*
1972 * Set up a bunch of variables to make the tests simpler.
1973 */
1974 error = 0;
1975 xfs_iext_get_extent(ifp, icur, &prev);
1976 ASSERT(!convert || new->br_state != prev.br_state);
1977 new_endoff = new->br_startoff + new->br_blockcount;
1978 del_startoff = prev.br_startblock +
1979 new->br_startoff - prev.br_startoff;
1980 del_state = prev.br_state;
1981 ASSERT(prev.br_startoff <= new->br_startoff);
1982 ASSERT(prev.br_startoff + prev.br_blockcount >= new_endoff);
1983
1984 /*
1985 * Set flags determining what part of the previous oldext allocation
1986 * extent is being replaced by a newext allocation.
1987 */
1988 if (prev.br_startoff == new->br_startoff)
1989 state |= BMAP_LEFT_FILLING;
1990 if (prev.br_startoff + prev.br_blockcount == new_endoff)
1991 state |= BMAP_RIGHT_FILLING;
1992
1993 /*
1994 * Check and set flags if this segment has a left neighbor.
1995 * Don't set contiguous if the combined extent would be too large.
1996 */
1997 if (xfs_iext_peek_prev_extent(ifp, icur, &left)) {
1998 state |= BMAP_LEFT_VALID;
1999 if (isnullstartblock(left.br_startblock))
2000 state |= BMAP_LEFT_DELAY;
2001 }
2002
2003 if ((state & BMAP_LEFT_VALID) && !(state & BMAP_LEFT_DELAY) &&
2004 left.br_startoff + left.br_blockcount == new->br_startoff &&
2005 left.br_startblock + left.br_blockcount == new->br_startblock &&
2006 left.br_state == new->br_state &&
2007 left.br_blockcount + new->br_blockcount <= MAXEXTLEN)
2008 state |= BMAP_LEFT_CONTIG;
2009
2010 /*
2011 * Check and set flags if this segment has a right neighbor.
2012 * Don't set contiguous if the combined extent would be too large.
2013 * Also check for all-three-contiguous being too large.
2014 */
2015 if (xfs_iext_peek_next_extent(ifp, icur, &right)) {
2016 state |= BMAP_RIGHT_VALID;
2017 if (isnullstartblock(right.br_startblock))
2018 state |= BMAP_RIGHT_DELAY;
2019 }
2020
2021 if ((state & BMAP_RIGHT_VALID) && !(state & BMAP_RIGHT_DELAY) &&
2022 new_endoff == right.br_startoff &&
2023 new->br_startblock + new->br_blockcount == right.br_startblock &&
2024 new->br_state == right.br_state &&
2025 new->br_blockcount + right.br_blockcount <= MAXEXTLEN &&
2026 ((state & (BMAP_LEFT_CONTIG | BMAP_LEFT_FILLING |
2027 BMAP_RIGHT_FILLING)) !=
2028 (BMAP_LEFT_CONTIG | BMAP_LEFT_FILLING |
2029 BMAP_RIGHT_FILLING) ||
2030 left.br_blockcount + new->br_blockcount + right.br_blockcount
2031 <= MAXEXTLEN))
2032 state |= BMAP_RIGHT_CONTIG;
2033
2034 /*
2035 * Switch out based on the FILLING and CONTIG state bits.
2036 */
2037 switch (state & (BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG |
2038 BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG)) {
2039 case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG |
2040 BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
2041 /*
2042 * Setting all of a previous oldext extent to newext.
2043 * The left and right neighbors are both contiguous with new.
2044 */
2045 left.br_blockcount += prev.br_blockcount + right.br_blockcount;
2046
2047 xfs_iext_remove(ip, icur, state);
2048 xfs_iext_remove(ip, icur, state);
2049 xfs_iext_prev(ifp, icur);
2050 xfs_iext_update_extent(ip, state, icur, &left);
2051 ifp->if_nextents -= 2;
2052 if (cur == NULL) {
2053 rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
2054 } else {
2055 rval = XFS_ILOG_CORE;
2056 error = xfs_bmbt_lookup_eq(cur, &right, &i);
2057 if (error)
2058 goto done;
2059 if (XFS_IS_CORRUPT(mp, i != 1)) {
2060 error = -EFSCORRUPTED;
2061 goto done;
2062 }
2063 if ((error = xfs_btree_delete(cur, &i)))
2064 goto done;
2065 if (XFS_IS_CORRUPT(mp, i != 1)) {
2066 error = -EFSCORRUPTED;
2067 goto done;
2068 }
2069 if ((error = xfs_btree_decrement(cur, 0, &i)))
2070 goto done;
2071 if (XFS_IS_CORRUPT(mp, i != 1)) {
2072 error = -EFSCORRUPTED;
2073 goto done;
2074 }
2075 if ((error = xfs_btree_delete(cur, &i)))
2076 goto done;
2077 if (XFS_IS_CORRUPT(mp, i != 1)) {
2078 error = -EFSCORRUPTED;
2079 goto done;
2080 }
2081 if ((error = xfs_btree_decrement(cur, 0, &i)))
2082 goto done;
2083 if (XFS_IS_CORRUPT(mp, i != 1)) {
2084 error = -EFSCORRUPTED;
2085 goto done;
2086 }
2087 error = xfs_bmbt_update(cur, &left);
2088 if (error)
2089 goto done;
2090 }
2091 break;
2092
2093 case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
2094 /*
2095 * Setting all of a previous oldext extent to newext.
2096 * The left neighbor is contiguous, the right is not.
2097 */
2098 left.br_blockcount += prev.br_blockcount;
2099
2100 xfs_iext_remove(ip, icur, state);
2101 xfs_iext_prev(ifp, icur);
2102 xfs_iext_update_extent(ip, state, icur, &left);
2103 ifp->if_nextents--;
2104 if (cur == NULL) {
2105 rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
2106 } else {
2107 rval = XFS_ILOG_CORE;
2108 error = xfs_bmbt_lookup_eq(cur, &prev, &i);
2109 if (error)
2110 goto done;
2111 if (XFS_IS_CORRUPT(mp, i != 1)) {
2112 error = -EFSCORRUPTED;
2113 goto done;
2114 }
2115 if ((error = xfs_btree_delete(cur, &i)))
2116 goto done;
2117 if (XFS_IS_CORRUPT(mp, i != 1)) {
2118 error = -EFSCORRUPTED;
2119 goto done;
2120 }
2121 if ((error = xfs_btree_decrement(cur, 0, &i)))
2122 goto done;
2123 if (XFS_IS_CORRUPT(mp, i != 1)) {
2124 error = -EFSCORRUPTED;
2125 goto done;
2126 }
2127 error = xfs_bmbt_update(cur, &left);
2128 if (error)
2129 goto done;
2130 }
2131 break;
2132
2133 case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
2134 /*
2135 * Setting all of a previous oldext extent to newext.
2136 * The right neighbor is contiguous, the left is not.
2137 */
2138 prev.br_blockcount += right.br_blockcount;
2139 prev.br_state = new->br_state;
2140 prev.br_startblock = new->br_startblock;
2141
2142 xfs_iext_next(ifp, icur);
2143 xfs_iext_remove(ip, icur, state);
2144 xfs_iext_prev(ifp, icur);
2145 xfs_iext_update_extent(ip, state, icur, &prev);
2146 ifp->if_nextents--;
2147
2148 if (cur == NULL) {
2149 rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
2150 } else {
2151 rval = XFS_ILOG_CORE;
2152 error = xfs_bmbt_lookup_eq(cur, &right, &i);
2153 if (error)
2154 goto done;
2155 if (XFS_IS_CORRUPT(mp, i != 1)) {
2156 error = -EFSCORRUPTED;
2157 goto done;
2158 }
2159 if ((error = xfs_btree_delete(cur, &i)))
2160 goto done;
2161 if (XFS_IS_CORRUPT(mp, i != 1)) {
2162 error = -EFSCORRUPTED;
2163 goto done;
2164 }
2165 if ((error = xfs_btree_decrement(cur, 0, &i)))
2166 goto done;
2167 if (XFS_IS_CORRUPT(mp, i != 1)) {
2168 error = -EFSCORRUPTED;
2169 goto done;
2170 }
2171 error = xfs_bmbt_update(cur, &prev);
2172 if (error)
2173 goto done;
2174 }
2175 break;
2176
2177 case BMAP_LEFT_FILLING | BMAP_RIGHT_FILLING:
2178 /*
2179 * Setting all of a previous oldext extent to newext.
2180 * Neither the left nor right neighbors are contiguous with
2181 * the new one.
2182 */
2183 prev.br_startblock = new->br_startblock;
2184 prev.br_state = new->br_state;
2185 xfs_iext_update_extent(ip, state, icur, &prev);
2186
2187 if (cur == NULL) {
2188 rval = XFS_ILOG_DEXT;
2189 } else {
2190 rval = 0;
2191 error = xfs_bmbt_lookup_eq(cur, new, &i);
2192 if (error)
2193 goto done;
2194 if (XFS_IS_CORRUPT(mp, i != 1)) {
2195 error = -EFSCORRUPTED;
2196 goto done;
2197 }
2198 error = xfs_bmbt_update(cur, &prev);
2199 if (error)
2200 goto done;
2201 }
2202 break;
2203
2204 case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG:
2205 /*
2206 * Setting the first part of a previous oldext extent to newext.
2207 * The left neighbor is contiguous.
2208 */
2209 left.br_blockcount += new->br_blockcount;
2210
2211 old = prev;
2212 prev.br_startoff += new->br_blockcount;
2213 prev.br_startblock += new->br_blockcount;
2214 prev.br_blockcount -= new->br_blockcount;
2215
2216 xfs_iext_update_extent(ip, state, icur, &prev);
2217 xfs_iext_prev(ifp, icur);
2218 xfs_iext_update_extent(ip, state, icur, &left);
2219
2220 if (cur == NULL) {
2221 rval = XFS_ILOG_DEXT;
2222 } else {
2223 rval = 0;
2224 error = xfs_bmbt_lookup_eq(cur, &old, &i);
2225 if (error)
2226 goto done;
2227 if (XFS_IS_CORRUPT(mp, i != 1)) {
2228 error = -EFSCORRUPTED;
2229 goto done;
2230 }
2231 error = xfs_bmbt_update(cur, &prev);
2232 if (error)
2233 goto done;
2234 error = xfs_btree_decrement(cur, 0, &i);
2235 if (error)
2236 goto done;
2237 error = xfs_bmbt_update(cur, &left);
2238 if (error)
2239 goto done;
2240 }
2241 break;
2242
2243 case BMAP_LEFT_FILLING:
2244 /*
2245 * Setting the first part of a previous oldext extent to newext.
2246 * The left neighbor is not contiguous.
2247 */
2248 old = prev;
2249 prev.br_startoff += new->br_blockcount;
2250 prev.br_startblock += new->br_blockcount;
2251 prev.br_blockcount -= new->br_blockcount;
2252
2253 xfs_iext_update_extent(ip, state, icur, &prev);
2254 xfs_iext_insert(ip, icur, new, state);
2255 ifp->if_nextents++;
2256
2257 if (cur == NULL) {
2258 rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
2259 } else {
2260 rval = XFS_ILOG_CORE;
2261 error = xfs_bmbt_lookup_eq(cur, &old, &i);
2262 if (error)
2263 goto done;
2264 if (XFS_IS_CORRUPT(mp, i != 1)) {
2265 error = -EFSCORRUPTED;
2266 goto done;
2267 }
2268 error = xfs_bmbt_update(cur, &prev);
2269 if (error)
2270 goto done;
2271 cur->bc_rec.b = *new;
2272 if ((error = xfs_btree_insert(cur, &i)))
2273 goto done;
2274 if (XFS_IS_CORRUPT(mp, i != 1)) {
2275 error = -EFSCORRUPTED;
2276 goto done;
2277 }
2278 }
2279 break;
2280
2281 case BMAP_RIGHT_FILLING | BMAP_RIGHT_CONTIG:
2282 /*
2283 * Setting the last part of a previous oldext extent to newext.
2284 * The right neighbor is contiguous with the new allocation.
2285 */
2286 old = prev;
2287 prev.br_blockcount -= new->br_blockcount;
2288
2289 right.br_startoff = new->br_startoff;
2290 right.br_startblock = new->br_startblock;
2291 right.br_blockcount += new->br_blockcount;
2292
2293 xfs_iext_update_extent(ip, state, icur, &prev);
2294 xfs_iext_next(ifp, icur);
2295 xfs_iext_update_extent(ip, state, icur, &right);
2296
2297 if (cur == NULL) {
2298 rval = XFS_ILOG_DEXT;
2299 } else {
2300 rval = 0;
2301 error = xfs_bmbt_lookup_eq(cur, &old, &i);
2302 if (error)
2303 goto done;
2304 if (XFS_IS_CORRUPT(mp, i != 1)) {
2305 error = -EFSCORRUPTED;
2306 goto done;
2307 }
2308 error = xfs_bmbt_update(cur, &prev);
2309 if (error)
2310 goto done;
2311 error = xfs_btree_increment(cur, 0, &i);
2312 if (error)
2313 goto done;
2314 error = xfs_bmbt_update(cur, &right);
2315 if (error)
2316 goto done;
2317 }
2318 break;
2319
2320 case BMAP_RIGHT_FILLING:
2321 /*
2322 * Setting the last part of a previous oldext extent to newext.
2323 * The right neighbor is not contiguous.
2324 */
2325 old = prev;
2326 prev.br_blockcount -= new->br_blockcount;
2327
2328 xfs_iext_update_extent(ip, state, icur, &prev);
2329 xfs_iext_next(ifp, icur);
2330 xfs_iext_insert(ip, icur, new, state);
2331 ifp->if_nextents++;
2332
2333 if (cur == NULL) {
2334 rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
2335 } else {
2336 rval = XFS_ILOG_CORE;
2337 error = xfs_bmbt_lookup_eq(cur, &old, &i);
2338 if (error)
2339 goto done;
2340 if (XFS_IS_CORRUPT(mp, i != 1)) {
2341 error = -EFSCORRUPTED;
2342 goto done;
2343 }
2344 error = xfs_bmbt_update(cur, &prev);
2345 if (error)
2346 goto done;
2347 error = xfs_bmbt_lookup_eq(cur, new, &i);
2348 if (error)
2349 goto done;
2350 if (XFS_IS_CORRUPT(mp, i != 0)) {
2351 error = -EFSCORRUPTED;
2352 goto done;
2353 }
2354 if ((error = xfs_btree_insert(cur, &i)))
2355 goto done;
2356 if (XFS_IS_CORRUPT(mp, i != 1)) {
2357 error = -EFSCORRUPTED;
2358 goto done;
2359 }
2360 }
2361 break;
2362
2363 case 0:
2364 /*
2365 * Setting the middle part of a previous oldext extent to
2366 * newext. Contiguity is impossible here.
2367 * One extent becomes three extents.
2368 */
2369 old = prev;
2370 prev.br_blockcount = new->br_startoff - prev.br_startoff;
2371
2372 right.br_startoff = new_endoff;
2373 right.br_blockcount =
2374 old.br_startoff + old.br_blockcount - new_endoff;
2375 right.br_startblock = old.br_startblock + prev.br_blockcount +
2376 new->br_blockcount;
2377 right.br_state = prev.br_state;
2378
2379 xfs_iext_update_extent(ip, state, icur, &prev);
2380 xfs_iext_next(ifp, icur);
2381 xfs_iext_insert(ip, icur, &right, state);
2382 xfs_iext_insert(ip, icur, new, state);
2383 ifp->if_nextents += 2;
2384
2385 if (cur == NULL) {
2386 rval = XFS_ILOG_CORE | XFS_ILOG_DEXT;
2387 } else {
2388 rval = XFS_ILOG_CORE;
2389 error = xfs_bmbt_lookup_eq(cur, &old, &i);
2390 if (error)
2391 goto done;
2392 if (XFS_IS_CORRUPT(mp, i != 1)) {
2393 error = -EFSCORRUPTED;
2394 goto done;
2395 }
2396 /* new right extent - oldext */
2397 error = xfs_bmbt_update(cur, &right);
2398 if (error)
2399 goto done;
2400 /* new left extent - oldext */
2401 cur->bc_rec.b = prev;
2402 if ((error = xfs_btree_insert(cur, &i)))
2403 goto done;
2404 if (XFS_IS_CORRUPT(mp, i != 1)) {
2405 error = -EFSCORRUPTED;
2406 goto done;
2407 }
2408 /*
2409 * Reset the cursor to the position of the new extent
2410 * we are about to insert as we can't trust it after
2411 * the previous insert.
2412 */
2413 error = xfs_bmbt_lookup_eq(cur, new, &i);
2414 if (error)
2415 goto done;
2416 if (XFS_IS_CORRUPT(mp, i != 0)) {
2417 error = -EFSCORRUPTED;
2418 goto done;
2419 }
2420 /* new middle extent - newext */
2421 if ((error = xfs_btree_insert(cur, &i)))
2422 goto done;
2423 if (XFS_IS_CORRUPT(mp, i != 1)) {
2424 error = -EFSCORRUPTED;
2425 goto done;
2426 }
2427 }
2428 break;
2429
2430 case BMAP_LEFT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
2431 case BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
2432 case BMAP_LEFT_FILLING | BMAP_RIGHT_CONTIG:
2433 case BMAP_RIGHT_FILLING | BMAP_LEFT_CONTIG:
2434 case BMAP_LEFT_CONTIG | BMAP_RIGHT_CONTIG:
2435 case BMAP_LEFT_CONTIG:
2436 case BMAP_RIGHT_CONTIG:
2437 /*
2438 * These cases are all impossible.
2439 */
2440 ASSERT(0);
2441 }
2442
2443 /* update reverse mappings */
2444 if (!convert) {
2445 old = *new;
2446 old.br_startblock = del_startoff;
2447 old.br_state = del_state;
2448 xfs_rmap_unmap_extent(tp, ip, whichfork, &old);
2449 xfs_rmap_map_extent(tp, ip, whichfork, new);
2450 } else {
2451 xfs_rmap_convert_extent(mp, tp, ip, whichfork, new);
2452 }
2453
2454 /* convert to a btree or extents if necessary */
2455 if (xfs_bmap_needs_btree(ip, whichfork)) {
2456 ASSERT(cur == NULL);
2457 error = xfs_bmap_extents_to_btree(tp, ip, &cur, 0,
2458 &tmp_logflags, whichfork);
> 2459 } else if (!convert) {
2460 error = xfs_bmap_btree_to_extents(tp, ip, cur,
2461 &tmp_logflags, whichfork);
2462 }
2463
2464 *logflagsp |= tmp_logflags;
2465 if (error)
2466 goto done;
2467
2468 /* clear out the allocated field, done with it now in any case. */
2469 if (cur) {
2470 cur->bc_ino.allocated = 0;
2471 *curp = cur;
2472 }
2473
2474 xfs_bmap_check_leaf_extents(*curp, ip, whichfork);
2475 done:
2476 *logflagsp |= rval;
2477 return error;
2478 }
2479
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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2022-02-14 4:29 [xiang:xfs/end_cow 2/3] fs/xfs/libxfs/xfs_bmap.c:2459:13: warning: variable 'tmp_logflags' is used uninitialized whenever 'if' condition is false kernel test robot
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